Chemistry, asked by gagan36187, 1 year ago

Why Group 1st metals are highly reactive?

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Answered by kanchi804

This is because reactivity increases down thegroup due to the increase in the size of the atom. ... The reactivity of a metal in group 1increases so potassium is more reactive than sodium and so on. The element at the bottom on the group is the most reactive metal which is caesium and francium.

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